import bash-4.4.20-2.el8

This commit is contained in:
CentOS Sources 2021-07-27 04:18:47 +00:00 committed by Andrew Lukoshko
parent c56ad38e19
commit 7f166176c1
3 changed files with 169 additions and 3 deletions

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@ -0,0 +1,136 @@
From 354efb96f1e4574f458e994163bbe31c76769573 Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet.ramey@case.edu>
Date: Fri, 1 Jun 2018 10:19:56 -0400
Subject: [PATCH] saved background process status hash table loop fixes
---
jobs.c | 62 +++++++++++++++++++++++++++++++++++++++++-----------
patchlevel.h | 2 +-
2 files changed, 50 insertions(+), 14 deletions(-)
diff --git a/jobs.c b/jobs.c
index fc966036..2684632d 100644
--- a/jobs.c
+++ b/jobs.c
@@ -812,8 +812,22 @@ bgp_add (pid, status)
ps_index_t *bucket, psi;
struct pidstat *ps;
- bucket = pshash_getbucket (pid);
- psi = bgp_getindex ();
+ /* bucket == existing chain of pids hashing to same value
+ psi = where were going to put this pid/status */
+
+ bucket = pshash_getbucket (pid); /* index into pidstat_table */
+ psi = bgp_getindex (); /* bgpids.head, index into storage */
+
+ /* XXX - what if psi == *bucket? */
+ if (psi == *bucket)
+ {
+#ifdef DEBUG
+ internal_warning ("hashed pid %d (pid %d) collides with bgpids.head, skipping", psi, pid);
+#endif
+ bgpids.storage[psi].pid = NO_PID; /* make sure */
+ psi = bgp_getindex (); /* skip to next one */
+ }
+
ps = &bgpids.storage[psi];
ps->pid = pid;
@@ -841,32 +855,47 @@ pshash_delindex (psi)
ps_index_t psi;
{
struct pidstat *ps;
+ ps_index_t *bucket;
ps = &bgpids.storage[psi];
if (ps->pid == NO_PID)
return;
- if (ps->bucket_next != NO_PID)
+ if (ps->bucket_next != NO_PIDSTAT)
bgpids.storage[ps->bucket_next].bucket_prev = ps->bucket_prev;
- if (ps->bucket_prev != NO_PID)
+ if (ps->bucket_prev != NO_PIDSTAT)
bgpids.storage[ps->bucket_prev].bucket_next = ps->bucket_next;
else
- *(pshash_getbucket (ps->pid)) = ps->bucket_next;
+ {
+ bucket = pshash_getbucket (ps->pid);
+ *bucket = ps->bucket_next; /* deleting chain head in hash table */
+ }
+
+ /* clear out this cell, just in case */
+ ps->pid = NO_PID;
+ ps->bucket_next = ps->bucket_prev = NO_PIDSTAT;
}
static int
bgp_delete (pid)
pid_t pid;
{
- ps_index_t psi;
+ ps_index_t psi, orig_psi;
if (bgpids.storage == 0 || bgpids.nalloc == 0 || bgpids.npid == 0)
return 0;
/* Search chain using hash to find bucket in pidstat_table */
- for (psi = *(pshash_getbucket (pid)); psi != NO_PIDSTAT; psi = bgpids.storage[psi].bucket_next)
- if (bgpids.storage[psi].pid == pid)
- break;
+ for (orig_psi = psi = *(pshash_getbucket (pid)); psi != NO_PIDSTAT; psi = bgpids.storage[psi].bucket_next)
+ {
+ if (bgpids.storage[psi].pid == pid)
+ break;
+ if (orig_psi == bgpids.storage[psi].bucket_next) /* catch reported bug */
+ {
+ internal_warning ("bgp_delete: LOOP: psi (%d) == storage[psi].bucket_next", psi);
+ return 0;
+ }
+ }
if (psi == NO_PIDSTAT)
return 0; /* not found */
@@ -904,15 +933,22 @@ static int
bgp_search (pid)
pid_t pid;
{
- ps_index_t psi;
+ ps_index_t psi, orig_psi;
if (bgpids.storage == 0 || bgpids.nalloc == 0 || bgpids.npid == 0)
return -1;
/* Search chain using hash to find bucket in pidstat_table */
- for (psi = *(pshash_getbucket (pid)); psi != NO_PIDSTAT; psi = bgpids.storage[psi].bucket_next)
- if (bgpids.storage[psi].pid == pid)
- return (bgpids.storage[psi].status);
+ for (orig_psi = psi = *(pshash_getbucket (pid)); psi != NO_PIDSTAT; psi = bgpids.storage[psi].bucket_next)
+ {
+ if (bgpids.storage[psi].pid == pid)
+ return (bgpids.storage[psi].status);
+ if (orig_psi == bgpids.storage[psi].bucket_next) /* catch reported bug */
+ {
+ internal_warning ("bgp_search: LOOP: psi (%d) == storage[psi].bucket_next", psi);
+ return -1;
+ }
+ }
return -1;
}
diff --git a/patchlevel.h b/patchlevel.h
index a711c495..4a65dc0f 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 19
+#define PATCHLEVEL 20
#endif /* _PATCHLEVEL_H_ */
--
2.29.2

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@ -0,0 +1,19 @@
diff --git a/builtins/history.def b/builtins/history.def
--- a/builtins/history.def
+++ b/builtins/history.def
@@ -256,10 +256,13 @@ histtime (hlist, histtimefmt)
{
static char timestr[128];
time_t t;
+ struct tm *tm;
t = history_get_time (hlist);
- if (t)
- strftime (timestr, sizeof (timestr), histtimefmt, localtime (&t));
+
+ tm = t ? localtime (&t) : 0;
+ if (t && tm)
+ strftime (timestr, sizeof (timestr), histtimefmt, tm);
else if (hlist->timestamp && hlist->timestamp[0])
snprintf (timestr, sizeof (timestr), _("%s: invalid timestamp"),
(hlist->timestamp[0] == '#') ? hlist->timestamp + 1: hlist->timestamp);

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@ -1,13 +1,13 @@
#% define beta_tag rc2
%global _hardened_build 1
%define patchleveltag .19
%define patchleveltag .20
%define baseversion 4.4
%bcond_without tests
Version: %{baseversion}%{patchleveltag}
Name: bash
Summary: The GNU Bourne Again shell
Release: 14%{?dist}
Release: 2%{?dist}
License: GPLv3+
Url: https://www.gnu.org/software/bash
Source0: https://ftp.gnu.org/gnu/bash/bash-%{baseversion}.tar.gz
@ -21,7 +21,7 @@ Source3: dot-bash_logout
# Official upstream patches
# Patches are converted to apply with '-p1'
%{lua:for i=1,19 do print(string.format("Patch%u: bash-4.4-patch-%u.patch\n", i, i)) end}
%{lua:for i=1,20 do print(string.format("Patch%u: bash-4.4-patch-%u.patch\n", i, i)) end}
# Other patches
Patch101: bash-2.02-security.patch
@ -112,6 +112,9 @@ Patch136: bash-5.0-cve-2019-18276-2.patch
# values
Patch137: bash-5.0-bgp-resize.patch
# 1794884 - HISTTIMEFORMAT causes Segmentation fault under certain conditions
Patch138: bash-5.0-histtimeformat-segfault.patch
BuildRequires: texinfo bison
BuildRequires: ncurses-devel
BuildRequires: autoconf, gettext
@ -335,6 +338,14 @@ end
%{_libdir}/pkgconfig/%{name}.pc
%changelog
* Mon Jul 26 2021 Siteshwar Vashisht <svashisht@redhat.com> - 4.4.20-2
- Fix crash if a timestamp in a history file overflowed a time_t
Resolves: #1794884
* Fri Mar 26 2021 Siteshwar Vashisht <svashisht@redhat.com> - 4.4.20-1
- Fix infinite loop in long running scripts
Resolves: #1943495
* Wed Nov 04 2020 Siteshwar Vashisht <svashisht@redhat.com> - 4.4.19-14
- Fix hang when limit for nproc is very high
Resolves: #1890888